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DOI10.1016/j.epsl.2019.115987
High water solubility of ringwoodite at mantle transition zone temperature
Fei H.; Katsura T.
发表日期2020
ISSN0012821X
卷号531
英文摘要The mantle transition zone, a potential water reservoir in the Earth's interior, is suggested to contain more than 1 wt.% of H2O, at least locally, by the natural water-rich ringwoodite inclusion (Pearson et al., 2014) and the mineral viscosity (Fei et al., 2017). It is against the low H2O solubility of ringwoodite (<0.3 wt.%) at mantle transition zone temperature based on laboratory experiments (Ohtani et al., 2000). We revisited the H2O solubility in ringwoodite at 1600-2000 K, showing that both iron-free and iron-bearing ringwoodite can store about 0.8-1.2 wt.% of H2O under mantle transition zone conditions. Temperature has a relatively small effect on the H2O solubility in iron-bearing system, but much larger in iron-free one. The high H2O solubility of ringwoodite is compatible with the water-rich mantle transition zone. The relatively low values reported previously is probably due to insufficient H2O source or unbuffered by SiO2. © 2019 Elsevier B.V.
关键词H2O solubilitymantle transition zoneringwoodite
英文关键词Iron; Reservoirs (water); Silica; Bearing systems; Earth's interior; High water; Laboratory experiments; Mantle transition zone; Natural waters; Ringwoodite; Solubility
语种英语
来源期刊Earth and Planetary Science Letters
文献类型期刊论文
条目标识符http://gcip.llas.ac.cn/handle/2XKMVOVA/202579
作者单位Bayerisches Geoinstitut, University of Bayreuth, Bayreuth, D95440, Germany; Center for High Pressure Science and Technology Advanced Research, Beijing, 100094, China
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Fei H.,Katsura T.. High water solubility of ringwoodite at mantle transition zone temperature[J],2020,531.
APA Fei H.,&Katsura T..(2020).High water solubility of ringwoodite at mantle transition zone temperature.Earth and Planetary Science Letters,531.
MLA Fei H.,et al."High water solubility of ringwoodite at mantle transition zone temperature".Earth and Planetary Science Letters 531(2020).
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